CVE-2026-8461

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-18. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution.

This vulnerability is associated with the file libavcodec/magicyuv.C.

This issue affects FFmpeg before version 8.1.2.

CVSS v3
8.8
EG Score
8.8(high)
EPSS
37.8%
KEV
Not listed

Published

June 18, 2026

Last Modified

June 30, 2026

Advisory Details (1)

Auto-updated Jun 19, 2026
No patch confirmed yet.
generic

#23159 - avcodec/magicyuv: reject slice_height misaligned with chroma vshift - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23159

Vendor Advisories for CVE-2026-8461(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 36× in last 7d / 96× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 19:03 UTCEG score recompute
  2. 2026-07-06 19:03 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 06:33 UTCEG score recompute
  6. 2026-07-06 06:33 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 18:30 UTCEG score recompute
  10. 2026-07-05 18:30 UTCGHSA enrichment
  11. 2026-07-05 06:27 UTCEG score recompute
  12. 2026-07-05 06:27 UTCGHSA enrichment
  13. 2026-07-05 02:31 UTCEPSS rescore
  14. 2026-07-05 02:30 UTCEPSS rescore
  15. 2026-07-04 18:25 UTCEG score recompute
  16. 2026-07-04 18:25 UTCGHSA enrichment
  17. 2026-07-04 06:31 UTCEPSS rescore
  18. 2026-07-04 06:31 UTCEPSS rescore
  19. 2026-07-04 06:11 UTCEG score recompute
  20. 2026-07-04 06:11 UTCGHSA enrichment
  21. 2026-07-03 18:08 UTCEG score recompute
  22. 2026-07-03 18:08 UTCGHSA enrichment
  23. 2026-07-03 06:01 UTCEG score recompute
  24. 2026-07-03 06:00 UTCGHSA enrichment
  25. 2026-07-02 17:55 UTCEG score recompute
Show 71 more
  1. 2026-07-02 17:55 UTCGHSA enrichment
  2. 2026-07-02 05:51 UTCEG score recompute
  3. 2026-07-02 05:51 UTCGHSA enrichment
  4. 2026-07-01 17:47 UTCEG score recompute
  5. 2026-07-01 17:47 UTCGHSA enrichment
  6. 2026-07-01 15:07 UTCEPSS rescore
  7. 2026-07-01 05:43 UTCEG score recompute
  8. 2026-07-01 05:42 UTCGHSA enrichment
  9. 2026-06-30 23:22 UTCEPSS rescore
  10. 2026-06-30 17:37 UTCEG score recompute
  11. 2026-06-30 17:37 UTCGHSA enrichment
  12. 2026-06-30 05:35 UTCEG score recompute
  13. 2026-06-30 05:34 UTCGHSA enrichment
  14. 2026-06-29 17:31 UTCEG score recompute
  15. 2026-06-29 17:31 UTCGHSA enrichment
  16. 2026-06-29 14:06 UTCEPSS rescore
  17. 2026-06-29 05:26 UTCEG score recompute
  18. 2026-06-29 05:26 UTCGHSA enrichment
  19. 2026-06-28 17:16 UTCEG score recompute
  20. 2026-06-28 17:16 UTCGHSA enrichment
  21. 2026-06-28 14:07 UTCEPSS rescore
  22. 2026-06-28 05:13 UTCEG score recompute
  23. 2026-06-28 05:13 UTCGHSA enrichment
  24. 2026-06-28 04:56 UTCEPSS rescore
  25. 2026-06-27 17:10 UTCEG score recompute
  26. 2026-06-27 17:10 UTCGHSA enrichment
  27. 2026-06-27 05:07 UTCEG score recompute
  28. 2026-06-27 05:07 UTCGHSA enrichment
  29. 2026-06-27 03:08 UTCEPSS rescore
  30. 2026-06-26 17:04 UTCEG score recompute
  31. 2026-06-26 17:04 UTCGHSA enrichment
  32. 2026-06-26 05:02 UTCEG score recompute
  33. 2026-06-26 05:02 UTCGHSA enrichment
  34. 2026-06-25 16:58 UTCEG score recompute
  35. 2026-06-25 16:58 UTCGHSA enrichment
  36. 2026-06-25 13:50 UTCEPSS rescore
  37. 2026-06-25 04:55 UTCEG score recompute
  38. 2026-06-25 04:55 UTCGHSA enrichment
  39. 2026-06-24 16:49 UTCEG score recompute
  40. 2026-06-24 16:49 UTCGHSA enrichment
  41. 2026-06-24 14:05 UTCEPSS rescore
  42. 2026-06-24 04:46 UTCEG score recompute
  43. 2026-06-24 04:45 UTCGHSA enrichment
  44. 2026-06-23 21:33 UTCEPSS rescore
  45. 2026-06-23 16:38 UTCEG score recompute
  46. 2026-06-23 16:38 UTCGHSA enrichment
  47. 2026-06-23 04:35 UTCEG score recompute
  48. 2026-06-23 04:34 UTCGHSA enrichment
  49. 2026-06-22 16:32 UTCEG score recompute
  50. 2026-06-22 16:32 UTCGHSA enrichment
  51. 2026-06-22 14:25 UTCEPSS rescore
  52. 2026-06-22 04:17 UTCEG score recompute
  53. 2026-06-22 04:16 UTCGHSA enrichment
  54. 2026-06-21 16:14 UTCEG score recompute
  55. 2026-06-21 16:14 UTCGHSA enrichment
  56. 2026-06-21 16:11 UTCGHSA enrichment
  57. 2026-06-21 14:56 UTCEPSS rescore
  58. 2026-06-21 04:08 UTCEG score recompute
  59. 2026-06-21 04:07 UTCGHSA enrichment
  60. 2026-06-21 01:59 UTCEPSS rescore
  61. 2026-06-20 15:59 UTCEG score recompute
  62. 2026-06-20 15:59 UTCGHSA enrichment
  63. 2026-06-20 03:56 UTCEG score recompute
  64. 2026-06-20 03:56 UTCGHSA enrichment
  65. 2026-06-19 19:26 UTCEPSS rescore
  66. 2026-06-19 15:52 UTCEG score recompute
  67. 2026-06-19 15:52 UTCGHSA enrichment
  68. 2026-06-19 03:49 UTCEG score recompute
  69. 2026-06-19 03:49 UTCGHSA enrichment
  70. 2026-06-18 15:44 UTCEG score recompute
  71. 2026-06-18 15:44 UTCGHSA enrichment

Publicly available exploits

(3 references)

Working exploit code is in the public domain (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoC0xBlackash/CVE-2026-8461
    First seen Jun 26, 2026

    CVE-2026-8461

    Open source ↗
  • GitHub PoCY5neKO/CVE-2026-8461-EXP
    First seen Jun 24, 2026
    Open source ↗
  • GitHub PoCanyanything/CVE-2026-8461-PoC
    First seen Jun 23, 2026
    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8461?
CVE-2026-8461 is a high vulnerability published on June 18, 2026. An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution. This vulnerability is associated with the file libavcodec/magicyuv.C. This issue affects FFmpeg before…
When was CVE-2026-8461 disclosed?
CVE-2026-8461 was first published in the National Vulnerability Database on June 18, 2026, with the most recent update on June 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8461 actively exploited?
CVE-2026-8461 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 37.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-8461?
CVE-2026-8461 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-8461?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8461, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-8461

Explore →

Is Your Infrastructure Affected by CVE-2026-8461?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs